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美制锯齿形螺纹的标准系列 |
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公称直径/in |
优选公称直径 /in |
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牙 数 |
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> |
≤ |
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0.51) |
0.75 |
0.5,0.625,0.75 |
20 |
16 |
12 |
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0.75 |
1.0 |
0.875,1.0 |
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16 |
12 |
10 |
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1.0 |
1.5 |
1.25,1.375,1.5 |
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16 |
12 |
10 |
8 |
6 |
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1.5 |
2.5 |
1.75,2,2.25,2.5 |
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16 |
12 |
10 |
8 |
6 |
5 |
4 |
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2.5 |
4 |
2.75,3,3.5,4 |
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16 |
12 |
10 |
8 |
6 |
5 |
4 |
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4 |
6 |
4.5,5,5.5,6 |
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12 |
10 |
8 |
6 |
5 |
4 |
3 |
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6 |
10 |
7,8,9,10 |
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10 |
8 |
6 |
5 |
4 |
3 |
2.5 |
2 |
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10 |
16 |
11,12,14,16 |
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10 |
8 |
6 |
5 |
4 |
3 |
2.5 |
2 |
1.5 |
1.25 |
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16 |
24 |
18,20,22,24 |
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8 |
6 |
5 |
4 |
3 |
2.5 |
2 |
1.5 |
1.25 |
1 |
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注:优先选用粗黑框内位于中间的牙数,其次选择粗黑框内靠两边的牙数,最后再选择粗黑框以外的牙数。 1)包括公称直径0.5。 |
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